tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
1
fork

Configure Feed

Select the types of activity you want to include in your feed.

Documentation/rtla: Mention default cgroup state

The RTLA option -C/--cgroup is used to set a cgroup for workload
threads. This is either a specific cgroup, if passed an argument, or
rtla's cgroup, if no argument is given.

Expand the documentation of the -C option to also include the
information about the cgroup settings when the option is not specified.

Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251010083338.478961-8-tglozar@redhat.com>

authored by

Tomas Glozar and committed by
Jonathan Corbet 122a552b 198fcc7c

+2
+2
Documentation/tools/rtla/common_options.txt
··· 48 48 49 49 Set a *cgroup* to the tracer's threads. If the **-C** option is passed without arguments, the tracer's thread will inherit **rtla**'s *cgroup*. Otherwise, the threads will be placed on the *cgroup* passed to the option. 50 50 51 + If not set, the behavior differs between workload types. User workloads created by rtla will inherit rtla's cgroup. Kernel workloads are assigned the root cgroup. 52 + 51 53 **--warm-up** *s* 52 54 53 55 After starting the workload, let it run for *s* seconds before starting collecting the data, allowing the system to warm-up. Statistical data generated during warm-up is discarded.